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Nitrogen fixation in root nodules of Alnus is brought about by:
Options
(a) Bradyrhizobium
(b) Clostridium
(c) Frankia
(d) Azorhizobium
Correct Answer:
Frankia
Explanation:
The most common symbiotic association of legume and bacteria on roots is as nodules, which are small outgrowth on the roots. The microbe Frankia is symbiotic in root nodules of several non-leguminous plants like Casurina and Alnus. Both Rhizobium and Frankia are free lilving in soil but can fix atmospheric nitrogen as symbionts.
Related Questions: - An angiospermic plant has 24 chromosomes in microspore mother cell
- Biceps and triceps are found in
- Bacterium associated with legume roots is
- The DNA molecule to which the gene of interest is integrated for cloning is called:
- During which phase of cell cycle DNA duplication occurs
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Plant Physiology
(28)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An angiospermic plant has 24 chromosomes in microspore mother cell
- Biceps and triceps are found in
- Bacterium associated with legume roots is
- The DNA molecule to which the gene of interest is integrated for cloning is called:
- During which phase of cell cycle DNA duplication occurs
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Plant Physiology (28)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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